Employee Stock Plans - Summary of Restricted Stock Units, Performance Stock Units, and Restricted Stock Awards Activity (Detail) - Restricted Stock Units, Performance Stock Units and Restricted Stock Awards - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 30, 2022
Number of Shares
Unvested restricted stock units and restricted stock awards, beginning balance (in shares)	1.4	1.1
Granted (in shares)	0.7	0.8
Vested (in shares)	(0.5)	(0.5)
Forfeited (in shares)	(0.2)	(0.0)
Unvested restricted stock units and restricted stock awards, ending balance (in shares)	1.4	1.4
Vested and expected to vest restricted stock units and restricted stock awards (in shares)	1.4
Unvested restricted stock units and restricted stock awards	$ 52.0	$ 46.1	$ 37.6
Vested and expected to vest restricted stock units and restricted stock awards	$ 51.9